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Finding the Fourth Proportional to 788,419, 1,088,023.08 and 430,723

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Solution

The fourth proportional to 788,419, 1,088,023.08 and 430,723 is: 594,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,419 : 1,088,023.08 = 430,723 : x
  2. Step 2: Convert to fraction form
    788,419/1,088,023.08 = 430,723/x
  3. Step 3: Cross multiply
    788,419x = 1,088,023.08 × 430,723
  4. Step 4: Simplify right side
    788,419x = 468,636,565,086.84
  5. Step 5: Solve for x
    x = 468,636,565,086.84/788,419
  6. Step 6: Final answer
    x = 594,400.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.